Acosta, D;
Affolder, T;
Ahn, MH;
Akimoto, T;
Albrow, MG;
Ambrose, D;
Amerio, S;
... CDF II Collaboration, .; + view all
(2004)
Observation of the narrow state X(3872)-> J/psi pi(+)pi(-) in (p)over-barp collisions at root s=1.96 TeV.
PHYS REV LETT
, 93
(7)
, Article 072001. 10.1103/PhysRevLett.93.072001.
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Abstract
We report the observation of a narrow state decaying into J/psipi(+)pi(-) and produced in 220 pb(-1) of (p) over barp collisions at roots=1.96 TeV in the CDF II experiment. We observe 730+/-90 decays. The mass is measured to be 3871.3+/-0.7(stat)+/-0.4(syst) MeV/c(2), with an observed width consistent with the detector resolution. This is in agreement with the recent observation by the Belle Collaboration of the X(3872) meson.
| Type: | Article |
|---|---|
| Title: | Observation of the narrow state X(3872)-> J/psi pi(+)pi(-) in (p)over-barp collisions at root s=1.96 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.072001 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.072001 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | CDF, CHARMONIUM, RESONANCE, UPGRADE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/153677 |
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